Diamond, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 30° -24° (1985) 59° (1975) 1.75" NA
February 18° 35° -24° (1982) 70° (1976) 1.59" NA
March 29° 47° -3° (1978) 86° (1986) 2.74" NA
April 39° 61° 7° (1982) 92° (1986) 3.54" NA
May 50° 73° 27° (1971) 96° (1975) 3.95" NA
June 59° 83° 35° (1972) 103° (1988) 4.16" NA
July 63° 85° 44° (1979) 103° (1983) 3.72" NA
August 61° 83° 40° (1986) 102° (1988) 3.4" NA
September 53° 76° 27° (1974) 97° (1971) 2.95" NA
October 41° 64° 16° (1988) 91° (1971) 2.54" NA
November 31° 48° -1° (1977) 79° (1978) 3.09" NA
December 19° 35° -20° (1983) 69° (1982) 2.36" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 62° 85° 47° (1988) 96° (1991) 0.13" NA
Jul 2 62° 85° 52° (1977) 94° (1991) 0.13" NA
Jul 3 62° 85° 48° (1988) 96° (1974) 0.13" NA
Jul 4 62° 85° 50° (1972) 96° (1974) 0.13" NA
Jul 5 63° 85° 44° (1972) 97° (1977) 0.13" NA
Jul 6 63° 85° 44° (1979) 98° (1977) 0.13" NA
Jul 7 63° 85° 46° (1983) 98° (1977) 0.13" NA
Jul 8 63° 85° 48° (1984) 99° (1980) 0.13" NA
Jul 9 63° 85° 50° (1984) 97° (1974) 0.12" NA
Jul 10 63° 86° 55° (1977) 98° (1974) 0.12" NA
Jul 11 63° 86° 49° (1978) 96° (1989) 0.12" NA
Jul 12 63° 86° 57° (1971) 99° (1976) 0.12" NA
Jul 13 63° 86° 50° (1976) 99° (1981) 0.12" NA
Jul 14 63° 86° 52° (1975) 102° (1995) 0.12" NA
Jul 15 63° 86° 54° (1975) 101° (1976) 0.12" NA
Jul 16 63° 86° 50° (1973) 100° (1988) 0.12" NA
Jul 17 64° 86° 49° (1976) 94° (1983) 0.12" NA
Jul 18 64° 86° 47° (1979) 95° (1983) 0.12" NA
Jul 19 64° 86° 51° (1979) 94° (1986) 0.12" NA
Jul 20 64° 86° 49° (1971) 98° (1980) 0.12" NA
Jul 21 64° 86° 55° (1979) 103° (1983) 0.12" NA
Jul 22 64° 85° 55° (1990) 101° (1983) 0.12" NA
Jul 23 64° 85° 51° (1985) 103° (1983) 0.12" NA
Jul 24 63° 85° 53° (1974) 94° (1976) 0.11" NA
Jul 25 63° 85° 55° (1975) 92° (1988) 0.11" NA
Jul 26 63° 85° 53° (1991) 94° (1987) 0.11" NA
Jul 27 63° 85° 44° (1977) 95° (1987) 0.11" NA
Jul 28 63° 85° 49° (1977) 93° (1988) 0.11" NA
Jul 29 63° 85° 48° (1971) 102° (1983) 0.11" NA
Jul 30 63° 85° 50° (1971) 98° (1983) 0.11" NA
Jul 31 63° 85° 47° (1971) 98° (1983) 0.11" NA
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